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Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution
Zhang YH; Fang YS(方宜申); Ng HD; Teng HH(滕宏辉)
Corresponding AuthorTeng, Honghui(hhteng@bit.edu.cn)
Source PublicationCOMBUSTION AND FLAME
2019-06-01
Volume204Pages:391-396
ISSN0010-2180
AbstractOblique detonation waves (ODWs) in stoichiometric acetylene-oxygen mixtures, highly diluted by 81-90% argon, are studied using the reactive Euler equations with a detailed chemistry model. Numerical results show that the incident Mach number M-0 changes the ODW initiation structure, giving both the smooth transition in the case of M-0 = 10 and the abrupt transition in the case of M-0 = 7. By comparing results of numerical simulation and theoretical analysis, the initiation processes are found to be chemical kinetics-controlled regardless of M-0, different from those in hydrogen-air mixtures which are wave-controlled in the low M-0 regime. The argon dilution effect on the initiation morphology is investigated, showing that the structures are determined by the dilution ratio and M-0 collectively. However, the initiation length is found to be independent of the dilution ratio and only determined by M-0, which is attributed to the competing effect of the high density and high temperature. (C) 2019 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
KeywordOblique detonation Acetylene-oxygen mixture Argon dilution Initiation structure
DOI10.1016/j.combustflame.2019.03.033
Indexed BySCI ; EI
Language英语
WOS IDWOS:000468377000033
WOS KeywordSTABILITY ; INSTABILITY ; PARAMETERS ; MECHANISM ; PATTERN ; TUBES
WOS Research AreaThermodynamics ; Energy & Fuels ; Engineering
WOS SubjectThermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical ; Engineering, Mechanical
Funding ProjectNational Natural Science Foundation of China, NSFC[11822202] ; National Natural Science Foundation of China, NSFC[91641130] ; Natural Sciences and Engineering Research Council of Canada, NSERC[RGPIN-2017-06698]
Funding OrganizationNational Natural Science Foundation of China, NSFC ; Natural Sciences and Engineering Research Council of Canada, NSERC
Classification一类/力学重要期刊
Ranking2
ContributorTeng, Honghui
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80690
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Zhang YH,Fang YS,Ng HD,et al. Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution[J]. COMBUSTION AND FLAME,2019,204:391-396.
APA Zhang YH,方宜申,Ng HD,&滕宏辉.(2019).Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution.COMBUSTION AND FLAME,204,391-396.
MLA Zhang YH,et al."Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution".COMBUSTION AND FLAME 204(2019):391-396.
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